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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7406769 | Pipe cutting apparatus A portable rechargeable apparatus for cutting a pipe with a collar having a throughbore for receiving pipe therein with a blade positioned within the throughbore for cutting the pipe. A gear teeth exteriorly positioned on the housing whereby a drive mechanism having... | 08/05/2008 |
| 7370703 | Downhole hydraulic pipe cutter The casing cutter disclosed herein is useful for severing downhole tubulars and comprises a body, slips, a cutting head, cutting blades, and actuators for operating the cutting head and cutting blades. The casing cutter can be anchored within casing wellbore with th... | 05/13/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7275469 | Planetary tubing cutter The planetary tubing cutter of the invention provides a gearing assembly having a pair of ring gears and a number of pinions with a blade affixed to each pinion. The ring gears are parallel to one another and are individually driven. The pinions are rotatably mounte... | 10/02/2007 |
| 7262385 | Material processing device A device for material processing, such as welding, joining, cutting, inspecting and the like, includes an energy beam source and one or more energy beam transfer devices. The one or more transfer devices may direct an energy beam at one or more predetermined locatio... | 08/28/2007 |
| 7174638 | Circular saw device for cutting off tubes A tube-cutting circular saw device, comprising a housing, a tube-clamping device for clamping the tube in relation to the housing, a motor-driven cutoff tool pivotable about the tube axis and a tool-guide device for the radial guidance of the cutoff tool around the ... | 02/13/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7152325 | Powered tubing cutter The powered tubing cutter is a hand held, mechanical device driven by a motor for cutting tubing/piping. The device comprises a housing, a drive plate, a main drive shaft, a cutting assembly having a cutting blade, a cam plate and a chain drive secured to a motor ho... | 12/26/2006 |
| 7116071 | Power tool and motor controller A method and apparatus to automatically reverse the motor of a power tool, such as a dispensing gun or similar tool. In some constructions, a controller automatically reverses the direction of plunger movement and removes the plunger from contact with the back wall ... | 10/03/2006 |
| 7103950 | Pipe beveling tool and method A tool assembly which is adapted to perform a cutting operation and also a beveling operation on a pipe. There is a rotary power saw which has rotary drive member to which a saw blade can be mounted. There is a bevel section having a mounting member that connects to... | 09/12/2006 |
| 7082656 | Pipe beveling system A tool for beveling the end of a pipe is comprised of a hollow, tubular body having a central, longitudinal axis of rotation, an inboard coupling end, and an opposite outboard working end. A plurality of longitudinally spaced, transversely directed latching pin bore... | 08/01/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| 7013567 | Hand held pipe cutters A pipe cutter comprises a rotary head having an axis of rotation, and a housing gear is coaxial with the rotary head such that the housing gear and rotary head have a common axis of rotation. A pipe slot extends into the rotary head and the housing gear, and a pipe ... | 03/21/2006 |
| 6994002 | End prep tool and tool centering and mounting system for use therewith An end prep tool is mounted in substantial alignment with a theoretical center of a pipe and used to prepare an end of a pipe, for example, by boring and/or cutting the end of the pipe. A tool centering and mounting system comprises a clamp cage and a tool mounting ... | 02/07/2006 |
| 6945146 | Pipe-chamfering disk The cutting disk includes cutting teeth for cutting through a pipe prior to engagement with the pipe of chamfering teeth pressed or bent sideways out of the plane of a flat body portion. Each of the chamfering teeth defines a cutting edge angled obtusely away from t... | 09/20/2005 |
| 6920812 | Centrifugal cutting apparatus A multiple blade centrifugal cutting machine having a planetary gear system for coordinating the motion of the blades so that the blades move into the work at the same speed to an equal depth to either sever the work element or strip away one or more layers of coati... | 07/26/2005 |
| 6901833 | Automated tube trimming system An automated tube trimming system accurately trims tubes to the correct height and angle. The tube trimming system is a combination of an automated trimming saw and a unique spherical tube clamping system. A spherical clamp having a fixed clamp section and an intern... | 06/07/2005 |
| 6568086 | Pipe cutting apparatus A pipe cutting apparatus comprises at least one work-holding fixture and a cutting device pivotable about the axis of the pipe to be cut and having a cutting tool and drive. The cutting device is movable manually and/or by means of at least one transmissi... | 05/27/2003 |
| 6336270 | Tube cutting and preparation tool and method A portable battery operated tube electrical conduit processing tool is disclosed. The tool has a housing includes a body portion and a handle portion connected in transverse relationship. A battery is connected to the handle portion. A motor is carried by... | 01/08/2002 |
| 6202307 | Power-driven hand-held tubing cutter A motor driven, hand-held tubing cutter is disclosed, which can be held stationary by a worker while cutting the tubing, and does not require that the tubing be held in a vise or other clamping tool. The device is reversible, and upon completion of the cu... | 03/20/2001 |
| 6189216 | Tube cutting and preparation tool and method A portable battery operated tube electrical conduit processing tool is disclosed. The tool has a housing includes a body portion and a handle portion connected in transverse relationship. A battery is connected to the handle portion. A motor is carried by... | 02/20/2001 |
| 6129488 | Pipe-cutting and chamfering arrangement The invention pertains to a device for cutting and chamfering thin-walled pipes. In order to cut and chamfer a pipe, a drive unit with tools arranged on its shaft is manually guided around a pipe that is clamped in a vise by means of clamping jaws with a ... | 10/10/2000 |
| 6065212 | Powered tube cutter and cutting process A tube cutter and process for cutting tubes, including a housing with a gear cluster therein and with the cluster providing for two separate drive controls to the cutter and the supporting rollers, both of which engage the tube to be cut. The drive contro... | 05/23/2000 |
| 5933963 | Tube saw A tube saw has a housing body with a first side, a second side, and a central opening. Surfaces of the first and second sides are machined parallel to each other. A cutter with a rotating blade is mounted on the first side and a vice is mounted on the sec... | 08/10/1999 |
| 5829142 | Motorized tool having rotatably driven workpiece accessories A motorized tool allows one or more operations to be performed on a workpiece, such as cutting and/or conditioning a surface of a pipe or a pipe fitting or receptacle. The motorized tool includes a cutter and/or one or more rotatably driven accessories, s... | 11/03/1998 |
| 5528830 | Rotary cutting tool for tubing, conduit and the like A tool for cutting tubular members has a rotatable cutting assembly adapted for mounting on the end of a tool body. The cutting assembly includes a rotatable base member having two support elements which support two cutting heads on the base member. The s... | 06/25/1996 |
| 5495672 | Tube cutter A tube cutter unit in one embodiment with self centering tube cutting and supporting jaws is rotated by a power drive unit for cutting a tube. The jaws are free to engage the tube without spring load. After engagement with the tube, a relatively high load... | 03/05/1996 |
| 5407382 | Method and apparatus for severing tubular material around a mandrel A method for severing tubular material around a rigid mandrel. The method comprises piercing the film with a knife such that the edge of the knife faces away from the mandrel, rotating the knife about the mandrel in a direction toward the knife edge while... | 04/18/1995 |
| 5394776 | Radial cutting tool for cutting thick-walled tubular members A portable cutting tool has an annular frame for surrounding the pipe. A rotatable ring on the frame carries a radially fed cutter which includes a bit subassembly for cutting the tubular member. The bit subassembly is indexed in response to orbital movem... | 03/07/1995 |
| 5351587 | Cutting tool for machining a plumbing nipple A cutting tool is disclosed which includes a substantially cylindrical body of a diameter sufficient for receiving a plumbing nipple through a first end of the body. A clamping element is provided adjacent to the first end of the cylindrical body for clam... | 10/04/1994 |
| 5315759 | Power-driven pipe cutting device A pipe cutting device for cutting tubing and other cylindrical objects comprises a frame with a handle portion at one end thereof and an upper jaw portion at another end thereof. A cutting roller is rotatably supported in the upper jaw portion. A slide ca... | 05/31/1994 |
| 5243760 | Adjustable gear driven tube cutter A tube cutting tool is described in which a cutting head is rotatably mounted within a tool body wherein both define "O" shaped openings to enable tubing to be inserted perpendicularly through the tool. A cutting wheel is incorporated into the cutting hea... | 09/14/1993 |
| 5189933 | Clamshell mounted pipe nozzle weld milling machine with centering apparatus A portable lathe especially designed to remove overlay welds used as a temporary fix to slow the propagation of IGSCC at the joints between pipes and nozzles in nuclear boiling water reactor systems comprises a clamshell-type portable machining lathe havi... | 03/02/1993 |
| 5103699 | Tube cutter Cutter for tube or pipe, including a drive head, an elongated main body having one end carried in the head, and a cam element carried on the other end of the main body. The head, body, and element have aligned similar bores to receive a tube. The main bod... | 04/14/1992 |
| 5099577 | Releasable knife axle for tube cutter A tube cutter consisting of two frame portions or jaws, being pivoted to one another at their end portions, and further interconnected at their intermediate poritons by a large bolt through which the jaws will move relative to one another about their comm... | 03/31/1992 |
| 5081768 | Pipe cutting A pipe cutting system includes an annular pipe encircling band member with parallel edge surfaces for encircling the pipe to be cut, releasable structure for securing the band member in pipe encircling configuration, and structure for spacing the edge sur... | 01/21/1992 |
| 4953292 | Hand-holdable tube cutting device A hand-holdable tube cutting device includes a tube clamping unit that opens and closes to hold a tube being cut in position. The clamping unit includes a driven bevel gear that moves in a race. The bevel gear is driven by a driver bevel gear that is conn... | 09/04/1990 |
| 4939964 | Low-clearance pipe lathe Disclosed is a portable machining lathe (10) having a stationary member (11) interconnected with a gear housing (16) which covers a rotating gear member (15). A circular race member (25) is connected to the gear member (15) and held in place by means of a... | 07/10/1990 |
| 4813314 | Multi-function pipe machining apparatus A portable multi-function pipe machining apparatus has a plurality of different cutting attachments to provide a portable machining center. The apparatus has a split frame with an inner ring attachable to the outer periphery of a pipe and rotatably mounts... | 03/21/1989 |
| 4802278 | Gear driven tube cutter A tube cutting tool is described in which a cutting head is rotatably mounted within a cutting body wherein both define "C" shaped slots to enable the cutting tool to be inserted laterally over a tube. A cutting wheel is attached to the cutting head such ... | 02/07/1989 |
